What experiment can show that light travels in a Straight Line?

Answer 1

The precautions are -

1. the holes of cardboard should be at the same height.
2. the height of the candle should be such that it should reach the hole.
3. cardboards should be placed vertically upright on level ground.
4. the holes should not be wide.

Answer 2

To answer this you need to get a lamp and 3 pieces of card with a hole in.

'hold the card and turn on the lamp.

' if the light goes through the holes than its a straight line if not it also proves it goes in a straight line

Answer 3

You need to use three pieces of card with a hole cut out. Place a candle on the bench and then clamp the three pieces of card in front of the candle, one behind the other - look through the holes (at this stage they're not lined up), and ask a volunteer to see if you can see the light from the candle....of course not.

Then thread a piece of string through the holes to help line them up and you should be able to see the candle now - indicating that the light is travelling in a straight line.

Could also look through some flexible tubing pointing at the candle - will only see the light when it is straight.

Answer 4

the refraction. light travels through a prism and then will be divided into different colors when it passes through the prism.

Answer 5

The best experiment

that you can do is

Straight. Borrow a

Experiment book

to find out sure for

yourself.